rename current stable linuxthreads to linuxthreads.old to prepare for import of latest glibc version

2 files changed, 198 insertions, 0 deletions

diff --git a/libpthread/linuxthreads.old/sysdeps/sh/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/sh/pt-machine.h
new file mode 100644
index 000000000..02545e6b4
--- /dev/null
+++ b/libpthread/linuxthreads.old/sysdeps/sh/pt-machine.h
@@ -0,0 +1,81 @@
+/* Machine-dependent pthreads configuration and inline functions.
+   SuperH version.
+   Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Niibe Yutaka <gniibe@m17n.org>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _PT_MACHINE_H
+#define _PT_MACHINE_H   1
+
+#ifndef __ASSEMBLER__
+#ifndef PT_EI
+# define PT_EI extern inline __attribute__ ((always_inline))
+#endif
+
+extern long int testandset (int *spinlock);
+extern int __compare_and_swap (long int *p, long int oldval, long int newval);
+
+/* Spinlock implementation; required.  */
+PT_EI long int
+testandset (int *spinlock)
+{
+  int ret;
+
+  __asm__ __volatile__(
+       "tas.b	@%1\n\t"
+       "movt	%0"
+       : "=r" (ret)
+       : "r" (spinlock)
+       : "memory", "cc");
+
+  return (ret == 0);
+}
+
+/* We want the OS to assign stack addresses.  */
+#define FLOATING_STACKS 1
+
+/* Maximum size of the stack if the rlimit is unlimited.  */
+#define ARCH_STACK_MAX_SIZE     32*1024*1024
+
+/* Get some notion of the current stack.  Need not be exactly the top
+   of the stack, just something somewhere in the current frame.  */
+#define CURRENT_STACK_FRAME  stack_pointer
+register char * stack_pointer __asm__ ("r15");
+
+/* Return the thread descriptor for the current thread.  */
+struct _pthread_descr_struct;
+#define THREAD_SELF \
+  ({ struct _pthread_descr_struct *self; \
+      __asm__("stc gbr,%0" : "=r" (self)); self;})
+
+/* Initialize the thread-unique value.  */
+#define INIT_THREAD_SELF(descr, nr) \
+  ({ __asm__ __volatile__("ldc %0,gbr" : : "r" (descr));})
+
+/* Access to data in the thread descriptor is easy.  */
+#define THREAD_GETMEM(descr, member) \
+  ((void) sizeof (descr), THREAD_SELF->member)
+#define THREAD_GETMEM_NC(descr, member) \
+  ((void) sizeof (descr), THREAD_SELF->member)
+#define THREAD_SETMEM(descr, member, value) \
+  ((void) sizeof (descr), THREAD_SELF->member = (value))
+#define THREAD_SETMEM_NC(descr, member, value) \
+  ((void) sizeof (descr), THREAD_SELF->member = (value))
+#endif /* __ASSEMBLER__ */
+
+#endif /* pt-machine.h */
diff --git a/libpthread/linuxthreads.old/sysdeps/sh/tls.h b/libpthread/linuxthreads.old/sysdeps/sh/tls.h
new file mode 100644
index 000000000..75326d8e1
--- /dev/null
+++ b/libpthread/linuxthreads.old/sysdeps/sh/tls.h
@@ -0,0 +1,117 @@
+/* Definition for thread-local data handling.  linuxthreads/SH version.
+   Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _TLS_H
+#define _TLS_H
+
+# include <pt-machine.h>
+
+#ifndef __ASSEMBLER__
+# include <stdbool.h>
+# include <stddef.h>
+# include <stdint.h>
+
+/* Type for the dtv.  */
+typedef union dtv
+{
+  size_t counter;
+  void *pointer;
+} dtv_t;
+
+
+typedef struct
+{
+  void *tcb;		/* Pointer to the TCB.  Not necessary the
+			   thread descriptor used by libpthread.  */
+  dtv_t *dtv;
+  void *self;		/* Pointer to the thread descriptor.  */
+} tcbhead_t;
+
+
+/* We can support TLS only if the floating-stack support is available.  */
+#if defined FLOATING_STACKS && defined HAVE_TLS_SUPPORT
+
+/* Get system call information.  */
+# include <sysdep.h>
+
+/* Signal that TLS support is available.  */
+//# define USE_TLS	1
+
+
+/* Get the thread descriptor definition.  */
+# include <linuxthreads/descr.h>
+
+/* This is the size of the initial TCB.  */
+# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
+
+/* Alignment requirements for the initial TCB.  */
+# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t)
+
+/* This is the size of the TCB.  */
+# define TLS_TCB_SIZE sizeof (struct _pthread_descr_struct)
+
+/* Alignment requirements for the TCB.  */
+# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct)
+
+/* The TLS blocks start right after the TCB.  */
+# define TLS_DTV_AT_TP	1
+
+
+/* Install the dtv pointer.  The pointer passed is to the element with
+   index -1 which contain the length.  */
+# define INSTALL_DTV(descr, dtvp) \
+  ((tcbhead_t *) (descr))->dtv = dtvp + 1
+
+/* Install new dtv for current thread.  */
+# define INSTALL_NEW_DTV(dtv) \
+  ({ struct _pthread_descr_struct *__descr;				      \
+     THREAD_SETMEM (__descr, p_header.data.dtvp, (dtv)); })
+
+/* Return dtv of given thread descriptor.  */
+# define GET_DTV(descr) \
+  (((tcbhead_t *) (descr))->dtv)
+
+/* Code to initially initialize the thread pointer.  This might need
+   special attention since 'errno' is not yet available and if the
+   operation can cause a failure 'errno' must not be touched.  */
+# define TLS_INIT_TP(descr, secondcall) \
+  ({									      \
+    void *_descr = (descr);						      \
+    int result;								      \
+    tcbhead_t *head = _descr;						      \
+									      \
+    head->tcb = _descr;							      \
+    /* For now the thread descriptor is at the same address.  */	      \
+    head->self = _descr;						      \
+									      \
+    asm ("ldc %0,gbr" : : "r" (_descr));				      \
+									      \
+    0;									      \
+  })
+
+
+/* Return the address of the dtv for the current thread.  */
+# define THREAD_DTV() \
+  ({ struct _pthread_descr_struct *__descr;				      \
+     THREAD_GETMEM (__descr, p_header.data.dtvp); })
+
+#endif	/* FLOATING_STACKS && HAVE_TLS_SUPPORT */
+#endif /* __ASSEMBLER__ */
+
+#endif	/* tls.h */